/* ============================
   CSS CUSTOM PROPERTIES
   ============================ */
:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #c0392b;
  --accent-hover: #a93226;
  --accent-soft: rgba(192,57,43,.06);
  --accent-warm: #ef4444;
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --bg-dark: #0f172a;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --white: #fff;
  --border: #e2e8f0;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 1px 3px rgba(0,0,0,.06);
  --shadow-hover: 0 4px 16px rgba(0,0,0,.08);
  --transition: .3s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-w: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  font-family: var(--font);
  color: var(--text);
  line-height: 1.6;
  overflow-x: clip;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ============================
   BUTTONS
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
  border: none;
}
.btn--primary {
  background: var(--accent);
  color: var(--white);
}
.btn--primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn--outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }


/* ============================
   HEADER
   ============================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
.header.scrolled { box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}
.header__logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-img { height: 44px; width: auto; }
.logo-text { line-height: 1.2; }
.logo-title { font-size: 16px; font-weight: 700; color: var(--primary); display: block; letter-spacing: -0.02em; }
.logo-subtitle { font-size: 9px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; font-weight: 500; display: block; }

.header__nav ul { display: flex; gap: 2px; align-items: center; }
.header__nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 100px;
  transition: all var(--transition);
}
.header__nav a:hover { color: var(--accent); background: var(--accent-soft); }
.header__nav a.active { color: var(--accent); font-weight: 600; }

.nav-lang { position: relative; }
.nav-lang__btn {
  display: flex !important;
  align-items: center !important;
  gap: 4px !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  color: var(--text-muted) !important;
  padding: 6px 10px !important;
}
.nav-lang__btn:hover { background: var(--accent-soft) !important; }
.nav-lang__btn i { font-size: 9px; }
.nav-lang__menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  min-width: 130px;
  display: none;
  z-index: 100;
  overflow: hidden;
  padding: 4px;
}
.nav-lang__menu.open { display: block; }
.nav-lang__option {
  display: block;
  width: 100%;
  padding: 8px 14px;
  background: none;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
}
.nav-lang__option:hover { background: var(--accent-soft); color: var(--accent); }
.nav-lang__option.active {
  background: var(--accent);
  color: var(--white);
  font-weight: 600;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  border-radius: 8px;
}
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================
   HERO (SCROLLYTELLING ELECTRICAL ENGINEERING)
   ============================ */
.hero--scrolly {
  position: relative;
  height: 340vh;
  --hero-scene-rgb: 24, 132, 198;
  background: linear-gradient(145deg, #071225 0%, #0b1740 28%, rgba(var(--hero-scene-rgb), 0.2) 48%, #211044 62%, #111735 82%, #070b18 100%);
  color: var(--white);
  padding: 0;
  overflow: visible;
  transition: background 0.9s ease;
}

.hero--scrolly[data-scene="1"] { --hero-scene-rgb: 24, 132, 198; }
.hero--scrolly[data-scene="2"] { --hero-scene-rgb: 218, 105, 48; }
.hero--scrolly[data-scene="3"] { --hero-scene-rgb: 198, 143, 25; }
.hero--scrolly[data-scene="4"] { --hero-scene-rgb: 71, 105, 72; }

.hero--scrolly::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 20% 30%, rgba(var(--hero-scene-rgb), 0.24) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 70%, rgba(192, 38, 211, 0.16) 0%, transparent 50%),
    radial-gradient(ellipse 60% 60% at 50% 50%, rgba(34, 211, 238, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  transition: background 0.9s ease;
}

.hero__ambient-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 65% at 50% 40%, black 35%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 65% at 50% 40%, black 35%, transparent 100%);
  pointer-events: none;
  z-index: 1;
}

.hero__particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
}

.hero__glow-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.hero__glow-orb--1 {
  width: 500px;
  height: 500px;
  top: 0;
  left: -5%;
  background: radial-gradient(circle, rgba(var(--hero-scene-rgb), 0.2) 0%, transparent 70%);
  filter: blur(60px);
  transition: background 0.9s ease;
}

.hero__glow-orb--2 {
  width: 600px;
  height: 600px;
  top: 20%;
  right: -10%;
  background: radial-gradient(circle, rgba(192, 38, 211, 0.16) 0%, transparent 70%);
  filter: blur(70px);
}

/* Sticky Viewport Stage */
.hero-scrolly__viewport {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 64px;
  padding-bottom: 10px;
  box-sizing: border-box;
  overflow: hidden;
  z-index: 2;
}

/* Scrolly Progress Strip */
.scrolly-progress-strip {
  position: absolute;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-w);
  padding: 0 24px;
  box-sizing: border-box;
  z-index: 10;
}

.scrolly-progress-line {
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}

.scrolly-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-warm) 60%, #7f1d1d 100%);
  box-shadow: 0 0 12px var(--accent);
  border-radius: 99px;
  transition: width 0.1s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 2%;
}

.scrolly-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.scrolly-phase-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #facc15;
  font-weight: 700;
  letter-spacing: 0.6px;
}

.phase-radar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 10px;
  height: 10px;
}

.phase-radar__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #facc15;
}

.phase-radar__ping {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid #facc15;
  animation: radarPing 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.scrolly-hint {
  color: #64748b;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.scrolly-hint i {
  animation: bounceDown 1.8s ease-in-out infinite;
  color: #facc15;
}

@keyframes bounceDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(3px); }
}

.hero__container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero__grid--scrolly {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: center;
}

/* Status Badge */
.hero__status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 13px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: 11.5px;
  font-weight: 500;
  color: #cbd5e1;
  margin-bottom: 16px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.status-pulse {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 10px;
  height: 10px;
}

.status-pulse__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.status-pulse__ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  animation: radarPing 2s cubic-bezier(0, 0, 0.2, 1) infinite;
  opacity: 0.75;
}

@keyframes radarPing {
  0% { transform: scale(0.8); opacity: 0.9; }
  70% { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.4); opacity: 0; }
}

.status-divider {
  color: rgba(255, 255, 255, 0.2);
  font-size: 11px;
}

.status-code {
  color: #facc15;
  font-weight: 700;
  letter-spacing: 0.6px;
  font-size: 11px;
}

/* Scrolly Narrative Left Column */
.hero__content--scrolly {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scrolly-chapters-wrap {
  position: relative;
}

.scrolly-chapter {
  display: none;
}

.scrolly-chapter.active {
  display: block;
}

.hero__title {
  font-size: clamp(1.9rem, 3.2vw, 2.8rem);
  font-weight: 800;
  color: #facc15;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

.hero__title--prefix {
  display: block;
  font-size: 0.4em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: #facc15;
  margin-bottom: 6px;
}

.hero__title--highlight {
  display: block;
  background: linear-gradient(135deg, #fef08a 35%, #facc15 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__desc {
  font-size: 15px;
  color: #94a3b8;
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 540px;
}

.scrolly-telemetry-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 8px;
  background: rgba(250, 204, 21, 0.08);
  border: 1px solid rgba(250, 204, 21, 0.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #facc15;
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 600;
  margin-bottom: 20px;
  width: fit-content;
}

.scrolly-telemetry-chip--gold {
  background: rgba(250, 204, 21, 0.08);
  border-color: rgba(250, 204, 21, 0.2);
  color: #facc15;
}

/* Scrolly Nav Pills */
.scrolly-nav-pills {
  display: flex;
  gap: 10px;
  margin-top: 0;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.scrolly-nav-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #94a3b8;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
}

.scrolly-nav-btn .nav-btn__num {
  font-weight: 700;
  color: #64748b;
  font-family: monospace;
}

.scrolly-nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
}

.scrolly-nav-btn.active {
  background: rgba(250, 204, 21, 0.12);
  border-color: #facc15;
  color: #facc15;
  box-shadow: 0 0 20px rgba(250, 204, 21, 0.2);
}

.scrolly-nav-btn.active .nav-btn__num {
  color: #facc15;
}

/* Hero CTA Group */
.hero__cta-group {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn--hero-quote {
  background: rgba(37, 99, 235, 0.2);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.2);
  transition: all 0.3s ease;
}

.btn--hero-quote:hover {
  transform: translateY(-3px);
  background: rgba(37, 99, 235, 0.3);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35);
}

.btn--hero-projects {
  background: rgba(255, 255, 255, 0.06);
  color: #e2e8f0;
  padding: 12px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
}

.btn--hero-projects:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* Trust & Hotline Strip */
.hero__trust-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero__hotline-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: #e2e8f0;
  transition: opacity 0.2s ease;
}

.hero__hotline-link:hover {
  opacity: 0.9;
}

.hero__hotline-link .hotline-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(192, 57, 43, 0.12);
  border: 1px solid rgba(192, 57, 43, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 12px;
}

.hero__hotline-link .hotline-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.hero__hotline-link .hotline-label {
  font-size: 10px;
  color: #94a3b8;
  font-weight: 500;
}

.hero__hotline-link .hotline-val {
  font-size: 13px;
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.hero__guarantee-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  color: #facc15;
  font-weight: 500;
  background: rgba(192, 57, 43, 0.08);
  padding: 6px 12px;
  border-radius: 9999px;
  border: 1px solid rgba(192, 57, 43, 0.2);
}

/* ============================
   SCROLLYTELLING VISUAL STAGE (RIGHT COLUMN)
   ============================ */
.hero__showcase--scrolly {
  position: relative;
}

.scrolly-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 25px 50px -15px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.showcase-card__header {
  padding: 9px 15px;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.5px;
  color: #64748b;
}

.showcase-card__tech-id {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #94a3b8;
  font-weight: 500;
}

.showcase-card__tech-id .tech-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.showcase-card__coords {
  color: #64748b;
  font-size: 10px;
}

.scrolly-viewport {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10.5;
  width: 100%;
  background: #090d16;
}

.scrolly-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 0.55s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  will-change: opacity, transform;
}

.scrolly-img.active {
  opacity: 1;
  transform: scale(1);
  z-index: 1;
}

.scrolly-img[data-img-chapter="1"] {
  filter: saturate(1.1) brightness(1.05);
}

.scrolly-img[data-img-chapter="2"] {
  filter: saturate(1.15) contrast(1.1) hue-rotate(10deg);
}

.scrolly-img--filter-factory {
  filter: saturate(1.15) contrast(1.1) brightness(0.9) sepia(0.15);
}

/* SVG Energy Flow Overlay */
.scrolly-energy-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(9, 13, 22, 0.88) 100%);
  display: flex;
  align-items: flex-end;
  padding: 0 10px 8px;
}

.scrolly-energy-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.circuit-path-flow {
  transition: d 0.35s ease;
  filter: drop-shadow(0 0 8px var(--accent));
}

.circuit-node {
  transition: transform 0.3s ease;
}

.circuit-node .node-pulse {
  opacity: 0;
  transition: opacity 0.3s ease;
  transform-origin: center;
}

.circuit-node.active .node-base {
  stroke-width: 2.5;
}

.circuit-node.active .node-pulse {
  opacity: 0.8;
  animation: nodePulse 2s ease-in-out infinite;
}

@keyframes nodePulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.35); opacity: 0.2; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.showcase-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(9, 13, 22, 0.1) 0%, rgba(9, 13, 22, 0.6) 100%);
  pointer-events: none;
  z-index: 2;
  transition: background 0.5s ease;
}

.showcase-card__overlay.chapter-1 {
  background: linear-gradient(180deg, rgba(9, 13, 22, 0.05) 0%, rgba(192, 57, 43, 0.15) 50%, rgba(9, 13, 22, 0.6) 100%);
}
.showcase-card__overlay.chapter-2 {
  background: linear-gradient(180deg, rgba(9, 13, 22, 0.05) 0%, rgba(239, 68, 68, 0.12) 50%, rgba(9, 13, 22, 0.6) 100%);
}
.showcase-card__overlay.chapter-3 {
  background: transparent;
}
.showcase-card__overlay.chapter-4 {
  background: linear-gradient(180deg, rgba(9, 13, 22, 0.05) 0%, rgba(239, 68, 68, 0.12) 50%, rgba(9, 13, 22, 0.6) 100%);
}

.showcase-card__crosshair {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 18px;
  height: 18px;
  border-top: 1.5px solid rgba(255, 255, 255, 0.4);
  border-right: 1.5px solid rgba(255, 255, 255, 0.4);
  pointer-events: none;
  z-index: 3;
}

/* Floating Telemetry Badges */
.showcase-badge {
  position: absolute;
  z-index: 4;
  background: rgba(11, 15, 25, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 10px;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.showcase-badge--top {
  top: 12px;
  left: 12px;
}

.showcase-badge .badge-icon {
  width: 26px;
  height: 26px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  flex-shrink: 0;
}

.showcase-badge--top .badge-icon {
  background: rgba(192, 57, 43, 0.15);
  color: var(--accent);
  border: 1px solid rgba(192, 57, 43, 0.3);
}

.showcase-badge .badge-content {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.showcase-badge .badge-label {
  font-size: 9.5px;
  text-transform: uppercase;
  color: #94a3b8;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.showcase-badge .badge-val {
  font-size: 11.5px;
  color: #ffffff;
  font-weight: 700;
}

/* ============================
   SPECS RIBBON (ENGINEERING STRIP)
   ============================ */
.hero__specs-ribbon--scrolly {
  margin-top: 14px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.specs-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.specs-item__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--accent);
  flex-shrink: 0;
  transition: all 0.25s ease;
}

.specs-item:hover .specs-item__icon {
  background: rgba(192, 57, 43, 0.12);
  border-color: rgba(192, 57, 43, 0.3);
  color: var(--accent);
  transform: translateY(-2px);
}

.specs-item__body {
  display: flex;
  flex-direction: column;
}

.specs-item__value {
  font-size: 15.5px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.specs-item__label {
  font-size: 11px;
  color: #94a3b8;
  line-height: 1.35;
  margin-top: 2px;
}

.specs-divider {
  width: 1px;
  height: 32px;
  background: rgba(255, 255, 255, 0.09);
}

/* ============================
   SECTION
   ============================ */
.section { padding: 80px 0; }
.section--alt { background: var(--bg-alt); }

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section__label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 10px;
}
.section__label[data-i18n="about_label"],
.section__label[data-i18n="services_label"],
.section__label[data-i18n="projects_label"] {
  font-size: 15px;
  letter-spacing: 1px;
}
.section__title {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}

.section__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.section__more {
  text-align: center;
  margin-top: 40px;
}
.section__more a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.section__more a:hover { gap: 10px; }

/* ============================
   SERVICES
   ============================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}
.service-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.service-card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  background: var(--accent-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  transition: var(--transition);
}
.service-card:hover .service-card__icon {
  background: var(--accent);
  color: var(--white);
}
.service-card h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.3;
}
.service-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================
   ABOUT SECTION (home)
   ============================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
}
.about__image img { width: 100%; height: 420px; object-fit: cover; }
.about__content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
}
.about__content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}
.about__list { display: flex; flex-direction: column; gap: 10px; }
.about__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
}
.about__list li i { color: var(--accent); font-size: 13px; }

/* ============================
   STATS
   ============================ */
.stats {
  padding: 64px 0;
  background: var(--bg-alt);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item {
  padding: 36px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.stat-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.stat-item__number {
  font-size: clamp(2.2rem, 3.5vw, 3rem);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
  letter-spacing: -.03em;
  line-height: 1;
}
.stat-item__label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ============================
   PROJECTS
   ============================ */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.project-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.project-card__image {
  height: 200px;
  overflow: hidden;
}
.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.project-card:hover .project-card__image img { transform: scale(1.05); }
.project-card__info { padding: 18px 20px; }
.project-card__info h3 { font-size: 14px; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
.project-card__info p { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.project-card__info i { color: var(--accent); font-size: 12px; width: 14px; }

/* ============================
   PARTNERS
   ============================ */
.partners {
  padding: 56px 0 40px;
  background: var(--white);
  overflow: hidden;
  position: relative;
}
#projects { padding-top: 40px; }
.partners .section__header {
  margin-bottom: 36px;
}
.partners .section__header .section__title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0;
}
.partners__track {
  display: flex;
  gap: 64px;
  animation: partnersScroll 35s linear infinite;
  width: max-content;
  align-items: center;
  padding: 0 24px;
}
.partners__card {
  flex-shrink: 0;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: .25;
  transition: opacity .4s ease;
}
.partners__card:hover {
  opacity: .6;
}
.partners__card img {
  max-height: 50px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}

@keyframes partnersScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================
   CONTACT
   ============================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}
.contact__info { display: flex; flex-direction: column; gap: 20px; }
.contact__item { display: flex; gap: 14px; align-items: flex-start; }
.contact__item i {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: var(--accent-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent);
}
.contact__item h4 { font-size: 14px; font-weight: 600; color: var(--primary); margin-bottom: 2px; }
.contact__item p, .contact__item a { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.contact__item a:hover { color: var(--accent); }

.contact__form {
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.contact__form input,
.contact__form select,
.contact__form textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 14px;
  transition: var(--transition);
  background: var(--white);
  color: var(--text);
  margin-bottom: 16px;
}
.contact__form input:focus,
.contact__form select:focus,
.contact__form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.contact__form input.error { border-color: var(--accent); }

/* ============================
   FOOTER
   ============================ */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.5);
  padding: 52px 0 0;
}
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.06); }
.footer__brand .logo-img { height: 40px; margin-bottom: 12px; }
.footer__brand > p { font-size: 14px; line-height: 1.7; margin-bottom: 18px; color: rgba(255,255,255,.4); }
.footer__social { display: flex; gap: 10px; }
.footer__social a {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; transition: var(--transition); color: rgba(255,255,255,.4);
}
.footer__social a:hover { background: var(--accent); border-color: var(--accent); color: var(--white); transform: translateY(-2px); }
.footer__links h4 { font-size: 14px; font-weight: 600; color: var(--white);   margin-bottom: 24px;
}
.footer__links li { margin-bottom: 8px; }
.footer__links a { font-size: 14px; transition: var(--transition); color: rgba(255,255,255,.4); }
.footer__links a:hover { color: var(--accent); padding-left: 4px; }
.footer__bottom { text-align: center; padding: 20px 0; font-size: 13px; color: rgba(255,255,255,.25); }

/* ============================
   SCROLL TOP
   ============================ */
.scroll-top {
  position: fixed; bottom: 30px; left: 30px;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: var(--white);
  border: none; font-size: 15px; cursor: pointer;
  opacity: 0; visibility: hidden;
  transition: var(--transition); z-index: 99;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(192,57,43,.25);
}
.scroll-top.show { opacity: 1; visibility: visible; }
.scroll-top:hover { transform: translateY(-2px); }

/* ============================
   FLOATING CONTACT
   ============================ */
.floating-contact {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 98;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.floating-contact__menu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.floating-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  text-decoration: none;
  font-size: 18px;
  color: var(--white);
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.floating-btn:hover { transform: scale(1.1); }
.floating-btn--phone { background: #2e7d32; }
.floating-btn--zalo { background: #0068ff; }
.floating-btn--ai {
  background: #7b1fa2;
}

/* ============================
   AI CHAT
   ============================ */
.ai-chat {
  position: fixed;
  bottom: 100px;
  right: 90px;
  width: 340px;
  max-height: 460px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0,0,0,.15);
  z-index: 99;
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.ai-chat.open { display: flex; }
.ai-chat__header {
  background: var(--primary);
  color: var(--white);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
}
.ai-chat__header i { font-size: 16px; color: var(--accent); }
.ai-chat__close {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(255,255,255,.5);
  font-size: 20px;
  cursor: pointer;
  padding: 0 4px;
}
.ai-chat__close:hover { color: var(--white); }
.ai-chat__body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 200px;
  max-height: 320px;
  background: var(--bg-alt);
}
.ai-chat__msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.6;
  word-wrap: break-word;
}
.ai-chat__msg--bot {
  background: var(--white);
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.ai-chat__msg--user {
  background: var(--accent);
  color: var(--white);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.ai-chat__msg--typing {
  background: var(--white);
  color: var(--text-muted);
  align-self: flex-start;
  font-style: italic;
  font-size: 13px;
  border-bottom-left-radius: 4px;
}
.ai-chat__footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--white);
}
.ai-chat__input {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 14px;
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: var(--transition);
}
.ai-chat__input:focus { border-color: var(--accent); }
.ai-chat__send {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  border: none;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}
.ai-chat__send:hover { background: var(--accent-hover); }
.ai-chat__send:disabled { opacity: .5; cursor: not-allowed; }

/* ============================
   PAGE HERO (inner pages)
   ============================ */
.page-hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a3e 100%);
  padding: 120px 0 64px;
  text-align: center;
  position: relative;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(192,57,43,.12), transparent 50%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.page-hero p {
  color: rgba(255,255,255,.5);
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto;
}
.breadcrumb {
  color: rgba(255,255,255,.35);
  font-size: 13px;
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,.5); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--accent); }

/* ============================
   ABOUT PAGE
   ============================ */
.about-page__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-page__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
  position: sticky;
  top: 100px;
}
.about-page__image img { width: 100%; height: auto; display: block; }

.about-page__section { margin-bottom: 36px; }
.about-page__section h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.about-page__section p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.value-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.value-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.value-card i { font-size: 28px; color: var(--accent); margin-bottom: 12px; }
.value-card h4 { font-size: 15px; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
.value-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.cert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
}
.cert-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}
.cert-item i { font-size: 18px; color: var(--accent); }
.cert-item div strong { display: block; font-size: 13px; color: var(--primary); font-weight: 600; }
.cert-item div span { font-size: 12px; color: var(--text-muted); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
  max-width: 700px;
}
.team-card {
  text-align: center;
  padding: 28px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}
.team-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.team-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.team-card__icon i { font-size: 20px; color: var(--white); }
.team-card h4 { font-size: 13px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.team-card p { font-size: 15px; font-weight: 700; color: var(--accent); }

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
  .hero--scrolly { height: 340vh; }
  .hero-scrolly__viewport { padding-top: 64px; padding-bottom: 8px; }
  .scrolly-progress-strip { top: 64px; }
  .hero__grid--scrolly { grid-template-columns: 1fr; gap: 14px; }
  .hero__showcase--scrolly { order: -1; max-width: 500px; margin: 0 auto; width: 100%; }
  .scrolly-viewport { aspect-ratio: 16 / 9; }
  .scrolly-energy-overlay { height: 60px; }
  .hero__title { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
  .hero__desc { max-width: 100%; font-size: 14px; }
  .hero__status-badge { font-size: 11px; padding: 4px 11px; }
  .scrolly-nav-pills { margin-top: 20px; gap: 8px; }
  .scrolly-nav-btn { padding: 5px 11px; font-size: 10.5px; }
  .hero__cta-group { margin-bottom: 20px; }
  .hero__trust-strip { padding-top: 14px; }
  .hero__specs-ribbon--scrolly {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 12px 16px;
    margin-top: 12px;
  }
  .specs-divider { display: none; }
  .specs-item__value { font-size: 14px; }
  .specs-item__label { font-size: 10px; }
  .specs-item__icon { width: 32px; height: 32px; font-size: 14px; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .projects__grid { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .about-page__grid { grid-template-columns: 1fr; }
  .about-page__image { position: static; }
}
@media (max-width: 768px) {
  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    padding: 80px 24px 24px;
    box-shadow: -4px 0 24px rgba(0,0,0,.06);
    transition: right .35s ease;
    overflow-y: auto;
  }
  .header__nav.open { right: 0; }
  .header__nav ul { flex-direction: column; gap: 2px; }
  .header__nav a { display: block; padding: 12px 16px; font-size: 15px; }
  .hamburger { display: flex; }
  .nav-lang__menu {
    position: static;
    margin-top: 0;
    min-width: auto;
    display: flex;
    gap: 4px;
    padding: 8px 16px;
    background: none;
    border: none;
    box-shadow: none;
  }
  .nav-lang__option { text-align: center; }
  .hero--scrolly { height: 300vh; }
  .hero-scrolly__viewport { padding-top: 60px; padding-bottom: 6px; }
  .scrolly-progress-strip { top: 60px; }
  .hero__grid--scrolly { gap: 12px; }
  .hero__showcase--scrolly { max-width: 100%; }
  .scrolly-viewport { aspect-ratio: 16 / 9; }
  .scrolly-energy-overlay { height: 55px; }
  .scrolly-energy-svg { transform: scale(0.9); transform-origin: bottom center; }
  .hero__title { font-size: clamp(1.3rem, 4.5vw, 1.7rem); margin-bottom: 12px; }
  .hero__title--prefix { font-size: 0.38em; }
  .hero__desc { font-size: 13px; margin-bottom: 14px; line-height: 1.55; }
  .hero__status-badge { flex-wrap: wrap; font-size: 10.5px; margin-bottom: 14px; padding: 4px 10px; }
  .scrolly-telemetry-chip { font-size: 10.5px; padding: 4px 10px; margin-bottom: 16px; }
  .scrolly-nav-pills { gap: 8px; margin-top: 20px; }
  .scrolly-nav-btn { padding: 5px 10px; font-size: 10.5px; }
  .hero__cta-group { flex-direction: column; align-items: stretch; gap: 10px; margin-bottom: 22px; }
  .btn--hero-quote, .btn--hero-projects { justify-content: center; width: 100%; text-align: center; padding: 10px 18px; font-size: 13px; }
  .hero__trust-strip { flex-direction: column; align-items: flex-start; gap: 10px; padding-top: 14px; }
  .hero__specs-ribbon--scrolly { grid-template-columns: 1fr 1fr; gap: 10px; padding: 10px 14px; margin-top: 12px; }
  .specs-item { gap: 8px; }
  .specs-item__icon { width: 28px; height: 28px; font-size: 12px; }
  .specs-item__value { font-size: 12.5px; }
  .specs-item__label { font-size: 9px; }
  .scrolly-progress-info { flex-direction: column; align-items: flex-start; gap: 4px; }
  .scrolly-hint { font-size: 10px; }
  .showcase-badge { padding: 4px 8px; }
  .showcase-badge .badge-icon { width: 22px; height: 22px; font-size: 10px; }
  .showcase-badge .badge-label { font-size: 8.5px; }
  .showcase-badge .badge-val { font-size: 10px; }
  .showcase-card__header { font-size: 9px; padding: 7px 10px; }
  .showcase-card__coords { display: none; }
  .services__grid { grid-template-columns: 1fr; }
  .projects__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 56px 0; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .values-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .hero--scrolly { height: 340vh; }
  .hero-scrolly__viewport { padding-top: 56px; padding-bottom: 4px; }
  .scrolly-progress-strip { top: 56px; }
  .hero__grid--scrolly { gap: 10px; }
  .hero__title { font-size: clamp(1.1rem, 5vw, 1.4rem); margin-bottom: 10px; }
  .hero__title--prefix { font-size: 0.36em; }
  .hero__desc { font-size: 12px; margin-bottom: 12px; }
  .hero__showcase--scrolly { max-width: 100%; }
  .scrolly-viewport { aspect-ratio: 16 / 10; }
  .scrolly-energy-overlay { height: 45px; }
  .scrolly-energy-svg { transform: scale(0.75); transform-origin: bottom center; }
  .hero__status-badge { font-size: 10px; padding: 3px 9px; margin-bottom: 12px; }
  .scrolly-telemetry-chip { font-size: 10px; padding: 3px 8px; margin-bottom: 14px; }
  .scrolly-nav-pills { gap: 6px; margin-top: 18px; }
  .scrolly-nav-btn { padding: 4px 9px; font-size: 10px; }
  .hero__cta-group { flex-direction: column; align-items: stretch; gap: 8px; margin-bottom: 20px; }
  .btn--hero-quote, .btn--hero-projects { justify-content: center; width: 100%; padding: 8px 14px; font-size: 11.5px; }
  .hero__trust-strip { flex-direction: column; align-items: flex-start; gap: 8px; padding-top: 12px; }
  .hero__hotline-link .hotline-val { font-size: 12px; }
  .hero__guarantee-pill { font-size: 10px; padding: 4px 8px; }
  .hero__specs-ribbon--scrolly { grid-template-columns: 1fr 1fr; gap: 6px; padding: 8px 10px; margin-top: 10px; }
  .specs-item { gap: 6px; }
  .specs-item__icon { width: 24px; height: 24px; font-size: 10px; }
  .specs-item__value { font-size: 11px; }
  .specs-item__label { font-size: 8.5px; }
  .showcase-badge { padding: 3px 7px; border-radius: 5px; }
  .showcase-badge .badge-icon { width: 20px; height: 20px; font-size: 9px; }
  .showcase-badge .badge-label { font-size: 7.5px; }
  .showcase-badge .badge-val { font-size: 9px; }
  .showcase-card__header { font-size: 8px; padding: 5px 8px; }
  .showcase-card__coords { display: none; }
  .showcase-badge--top { top: 6px; left: 6px; }
  .scrolly-hint { display: none; }
  .scrolly-progress-info { flex-direction: column; align-items: flex-start; gap: 2px; }
  .scrolly-phase-indicator { font-size: 10px; }
  .scroll-top { left: 16px; right: auto; bottom: 20px; }
  .floating-contact { left: auto; right: 16px; bottom: 20px; }
  .floating-btn { width: 42px; height: 42px; font-size: 16px; }
  .ai-chat { left: auto; right: 16px; width: min(340px, calc(100vw - 32px)); bottom: 80px; }
}